Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
Good catch! Thank you Raymond for the third example.
I though that it can be easily fixed by calling tp_traverse() for submapping:
static int
mappingproxy_traverse(PyObject *self, visitproc visit, void *arg)
{
mappingproxyobject *pp = (mappingproxyobject *)self;
- Py_VISIT(pp->mapping);
- return 0;
+ return Py_TYPE(pp->mapping)->tp_traverse(pp->mapping, visit, arg);
}
but it does not work.
So I am okay with closing this issue.
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue43838>
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